3v4l.org

run code in 500+ PHP versions simultaneously
<?php class TestAttribute {} class NestedAttribute {} #[TestAttribute(new \NestedAttribute())] class A {}
Output for 7.4.0 - 7.4.27, 8.1.0 - 8.1.34, 8.2.22 - 8.2.31, 8.3.5 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
Output for 8.0.1 - 8.0.15
Fatal error: Constant expression contains invalid operations in /in/buKfZ on line 7
Process exited with code 255.
preferences:
59.32 ms | 925 KiB | 4 Q